Glossary
SRS (Sounding Reference Signal) in 3GPP: meaning and where it is specified
At a glance
- Term
- SRS
- Stands for
- Sounding Reference Signal
- Defined in
- 3GPP TR 21.905 V19.2.0, clause 4
- Used in
- TS 38.331
In plain words
SRS means Sounding Reference Signal, the vocabulary term in TR 21.905 clause 4, while TS 38.331 includes an SRS-Config information element. That element is used to "configure sounding reference signal transmissions", which describes its function in TS 38.331.
Source: 3GPP TS 38.331 V15.30.0, clause 6.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38331-fu0.zip
Sources
- 3GPP TR 21.905 V19.2.0, clause 4. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/21_series/21.905/21905-j20.zip
- 3GPP TS 38.331 V15.30.0, clause 6.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38331-fu0.zip
How this page was made
The facts box comes straight from the 3GPP TDoc list and specification archive as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.